弦脉，端直以长（《素问》），如张弓弦（《脉经》），按之不移，绰绰如按琴瑟弦（巢氏），状若筝弦（《脉诀》），从中
直过，挺然指下（《刊误》）。弦脉在卦为震，在时为春，在人为肝。轻虚以滑者平，实滑如循长竿者病，劲急如新张弓
弦者死。池氏曰∶弦紧而数劲为太过，弦紧而细为不及。戴同父曰∶弦而软，其病轻；弦而硬，其病重。《脉诀》言∶
时时带数，又言脉紧状绳牵。皆非弦象，今削之。
〔体状诗〕弦脉迢迢端直长，肝经木旺土应伤。怒气满胸常欲叫，翳蒙瞳子泪淋浪。
〔相类诗〕弦来端直似丝弦，紧则如绳左右弹。紧言其力弦言象，牢脉弦长沉伏间。（又见长脉）
〔主病诗〕弦应东方肝胆经，饮痰寒热疟缠身。浮沉迟数须分别，大小单双有重轻。寸弦头痛膈多痰，寒热 瘕察
左关。关右胃寒心腹痛，尺中阴疝脚拘挛。弦为木盛之病。浮弦支饮外溢，沉弦悬饮内痛。疟脉自弦，弦数多热，弦迟
多寒。弦大主虚，弦细拘急。阳弦头痛，阴弦腹痛。单弦饮癖，双弦寒痼。若不食者，木来克土，必难治。
革脉，弦而芤（仲景），如按鼓皮（丹溪）。仲景曰∶弦则为寒，芤则为虚，虚寒相抟，此名曰革。男子亡血失精，
妇人半产漏下。《脉经》曰∶三部脉革，长病得之死，卒病得之生。时珍曰∶此即芤弦二脉相合，故均主失血之候。诸
家脉书，皆以为牢脉，故或有革无牢，有牢无革，混淆不辨。不知革浮牢沉，革虚牢实，形证皆异也。又按∶《甲乙经》
曰∶浑浑革革，至如涌泉，病进而危；弊弊绰绰，其去如弦绝者死。谓脉来混浊革变，急如涌泉，出而不反也。王贶以
为溢脉，与此不同。
〔体状主病诗〕革脉形如按鼓皮，芤弦相合脉寒虚。女人半产并崩漏，男子营虚或梦遗。
〔相类诗〕见芤、牢。
The Xian (Wiry) pulse is straight and long (Suwen), like the string of a drawn bow (Maijing), unmovable upon pressure, spacious and smooth as if pressing the strings of a qin or se (Chao Shi), resembling the strings of a zheng (Maijue), passing straight through the middle, standing firm under the fingers (Kanwu). In the Bagua, the Xian pulse corresponds to Zhen; in the seasons, to Spring; in the human body, to the Liver. If light, empty, and slippery, it is a normal pulse (Ping); if solid, slippery, and felt like tracing a long bamboo pole, it indicates disease; if tense and urgent like a newly tightened bowstring, it indicates death. Chi states: Tense, tight, and rapid with force indicates excess; tense, tight, and thin indicates deficiency. Dai Tongfu states: Wiry and soft indicates mild disease; wiry and hard indicates severe disease. The Maijue states: "Often accompanied by a rapid pulse," and "Tight like a rope being pulled." These do not represent the image of the Wiry pulse and are now deleted.
[Body Form Poem] The Wiry pulse is distant, straight, and long; when Liver Wood is hyperactive, Spleen Earth is injured. Anger fills the chest, often leading to shouting; eyes are obscured, pupils tear profusely.
[Similarity Poem] The Wiry pulse comes straight and taut like a silk string; the Jin (Tight) pulse feels like a rope snapping left and right. "Jin" describes its force, "Xian" describes its form; the Lao (Deep-Wiry) pulse lies between deep and wiry-long positions. (Also see Long Pulse).
[Disease Indication Poem] The Wiry pulse corresponds to the Liver and Gallbladder meridians of the East, associated with fluid retention, phlegm, cold-heat disorders, and malaria. Floating, sinking, slow, and rapid must be distinguished separately; large/small and single/double indicate severity. At the Cun position, a Wiry pulse indicates headache and excessive phlegm in the diaphragm; at the Left Guan position, observe cold-heat and abdominal masses. At the Right Guan position, it indicates Stomach cold and heart/abdominal pain; at the Chi position, it indicates Yin hernia and leg cramps. The Wiry pulse signifies an excess of Wood. Floating-Wiry indicates external overflow of branch-fluids; Sinking-Wiry indicates internal pain from suspended fluids. Malaria pulses are naturally Wiry; Wiry-Rapid indicates more heat; Wiry-Slow indicates more cold. Wiry-Large indicates deficiency; Wiry-Fine indicates stiffness and cramping. Yang-position Wiry indicates headache; Yin-position Wiry indicates abdominal pain. Single Wiry indicates fluid accumulation; Double Wiry indicates chronic cold conditions. If the patient cannot eat, Wood overacting on Earth makes it difficult to treat.
The Ge (Drum Skin) pulse is both Wiry and Kou (Hollow) (Zhang Zhongjing), feeling like pressing a drum skin (Zhu Danxi). Zhang Zhongjing states: Wiry indicates Cold, Kou indicates Deficiency; the binding of Deficiency and Cold is named Ge. In men, it indicates loss of blood or essence; in women, spontaneous abortion or uterine bleeding. The Maijing states: If all three positions show a Ge pulse, it indicates death in chronic diseases but survival in acute diseases. Li Shizhen states: This is a combination of the Kou and Wiry pulses, thus both primarily indicate signs of blood loss. Various pulse books mistake it for the Lao pulse, resulting in some texts having Ge without Lao, or Lao without Ge, causing confusion. They fail to realize that Ge is superficial while Lao is deep; Ge indicates deficiency while Lao indicates excess; their forms and syndromes are entirely different. Furthermore, the Jiayi Jing states: "Muddy and turbulent, rushing like a spring, indicates advancing disease and danger; weak and scattered, departing like a broken string, indicates death." This refers to the pulse coming turbid and turbulent, urgent like a gushing spring, exiting without returning. Wang Kuang considered it the Yi pulse, which is different.
[Body Form and Disease Indication Poem] The Ge pulse feels like pressing a drum skin; the combination of Kou and Wiry indicates Cold and Deficiency. In women, it indicates spontaneous abortion and metrorrhagia; in men, Ying-Qi deficiency or nocturnal emission.
[Similarity Poem] See Kou Pulse and Lao Pulse.